<!Doctype HTML>
<SCRIPT LANGUAGE="JavaScript">

var x=prompt("Enter a number between 0 and 10:","");
try {
	if(x>10) {
		throw "Err1";
	} else if(x<0) {
		throw "Err2";
	} else if(isNaN(x)) {
		throw "Err3";
	}
} catch(er) {
	if(er=="Err1") {
		alert("Error! The value is too high");
	}
	if(er=="Err2") {
		alert("Error! The value is too low");
	}
	if(er=="Err3") {
		alert("Error! The value is not a number");
	}
} finally {
	alert('I am alerted regardless of the outcome above')
}

</SCRIPT>